In the upcoming animated and live action flick, Alvin, Simon and Theodore (voiced by Jesse McCartney) end up in the care of Dave Seville’s twenty-something nephew Toby (Zachary Levi). The boys must put aside music superstardom to return to school, and are tasked with saving the school’s music program by winning the $25,000 prize in a battle of the bands. But the Chipmunks unexpectedly meet their match in three singing chipmunks known as The Chipettes -â” Brittany, Eleanor and Jeanette.